標題: 双语揭秘:牙齿美白能否DIY? [打印本頁] 作者: admin 時間: 2020-9-5 17:40 標題: 双语揭秘:牙齿美白能否DIY? Self-treatments using baking soda, ash and hydrogen peroxide provided online with no dental experience, can strip tooth enamel and cause lasting damag護手霜推薦,e to the gu無塵擦拭布,ms, experts cautioned。
But dentists said some of the methods can erode the enamel covering of the teeth, making them appear darker rather than whiter。
但牙医提示说，有些法子可能会毁伤笼盖在牙齿上的牙釉质，反而让牙齿显得更黑。
Up to 100,000 people undergo some type of teeth whitening treatment each year, ten times more than did so five years ago。
比年来，每一年举行牙齿美白的人数已到达10万人，是五年前的十倍。
But for many people即時比分, the process is prohibitively expensive, costing up to ￡1,300(＄2,096) for laser treatment and as much as ￡700(＄1,128) for professional bleaching。
Professor Andrew Eder, clinical director of the London Tooth Whitening Centre, said using baking soda repeatedly would strip the teeth of enamel, leaving them browner and more sensitive, while salt would scratch the enamel and any use of acid was especially damaging。